/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet;

import dao.UsersDAOImpl;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import javax.persistence.EntityManager;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import model.Users;
import utils.PersistenceUtil;

/**
 *
 * @author Joni_Geol
 */
@WebServlet(name = "Login", urlPatterns = {"/Login"})
public class Login extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            HttpSession session = request.getSession(true);
            try {
                    EntityManager em = PersistenceUtil.getEntityManager();
                    Users obj = new UsersDAOImpl(em).get(request.getParameter("username"), request.getParameter("password"));
                    if (obj != null) {
                        obj.setCurrently_use(new Date());
                        obj.setIp_address(request.getRemoteAddr());
                        new UsersDAOImpl(em).update(obj);
                        session.setAttribute("status", "activated");
                        session.setAttribute("user", obj.getId());
                        out.print("{\"success\":true}");
                    } else {
                        out.print("{\"success\":false,\"msg\":\"Wrong username or password\"}");
                    }
                } catch (Exception ex) {
                    out.print("{\"success\":false,\"msg\":\"Cant connect server\"}");
                }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
